GB/T 8946-2013General technical requirements of plastic woven sack (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard replaces GB/T 8946-1998 "plastic bags" and GB/T 8947-1998 "composite plastic bags." This standard incorporates GB/T 8946-1998 and GB/T 8947-1998, in addition to editorial changes, the main changes are as follows.

--- Modify the scope of application (see Chapter 1);

--- Increased terms and definitions (see Chapter 3);

--- Modify the classification bags, an increase of multilayer bags and square bottom (see 4.1.2 and 4.1.3);

--- Increasing the loading mass 10kg bags and below LA and physical performance indicators (see Table 4.2 and 4);

--- Remove the bag allows the loading mass lower limit (see GB/T 8946-1998 and GB/T 8947-1998 Table 1);

--- Modify the specifications of the bag, increasing the width of the bag series (see 4.3.1);

--- Modify the warp and weft density Density series (see 4.3.3);

--- Increased bag named (see 4.4);

--- Increased bag identification (see 4.5);

--- Remove the bottom seam bags and technical requirements (see GB/T 8946-1998 and GB/T 8947-1998 3.1.2 and Table 4);

--- Remove the pouch-type structure (see GB/T 8946-1998 Table 1);

--- Remove the pouch-type linear density requirements (see GB/T 8946-1998 Table 1);

--- Remove the film bags Fumo bags and mass per unit area is defined (see GB/T 8947-1998 Table 4);

--- Increased materials and semifinished chapter (see Chapter 5);

--- Biansi revised technical specifications and testing (see Appendix A);

--- Modify the appearance of the pouch quality indicators and test methods (see Table 2 and 7.1);

--- Modify the effective width of the bag, length tolerances and test methods (see Table 3 and 7.2);

Quality --- modified bag bags deviation test and calculation basis (see Appendix B);

--- Modify the bag physical performance indicators (see Table 4);

--- Increasing the bag valve port metrics to tensile load (see Table 4);

--- Revised determination principle broken package drop test (see 6.5);

--- Increase the technical requirements and test methods UV bag (see 6.6 and 7.6);

--- Modify the health performance and test methods (see 6.7 and 7.7);

--- Modify the sampling location and physical properties of the sample size and the shape of the bottom seam to the sample (see Appendix C);

--- Increasing the square bottom sampling locations and sample size, the shape of the sample (see Appendix C);

--- Modify the physical properties of the test fixture spacing and tensile rate (see 7.3.3);

--- Modify heat resistance test method (see 7.4);

--- Modify the performance drop loading of materials and quality (see 7.5.2);

--- Increasing the fill factor drop performance measurement method (see 7.5.3.2);

--- Modify the height drop test performance laminating pouch (see 7.5.4.2);

--- Increased drop drop-plane direction of performance requirements (see 7.5.5.2);

--- Revised inspection rules Batch number (see 8.1);

--- Modify the rules for sampling inspection rules and decision rules (see 8.2 and 8.5);

--- Modify the logo, packaging, transportation and storage (see Chapter 9). The standard proposed by China National Light Industry Council.

1 Scope

This standard specifies the terms and definitions of plastic bags, classification, type, size, name, logo, materials and semi-finished products, requirements, test side Method, inspection rules, marking, packaging, transportation and storage.

This standard applies to polypropylene, polyethylene and polyester resin such as the main raw material, extrusion, stretching into a flat, woven bag made of plastic woven bag.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

1040.1-2006 Plastics Determination of tensile properties GB/T Part 1. General Test conditions for films and sheets.

GB/T 2918-1998 plastic sample conditioning and testing of the standard environment

GB/T 5009.60 food packaging, polyethylene, polystyrene, polypropylene moldings health standard analytical methods of GB 9685 food containers and packaging materials additives health standards

GB 9687 food packaging polyethylene moldings health standards

GB 9688 food packaging polypropylene moldings health standards

GB 13113 food containers and packaging materials polyethylene terephthalate moldings health standards

GB/T 16288-2008 plastic signs

GB/T 16422.1 Plastics - Methods of exposure to laboratory light sources - Part 1: General

GB/T 16422.3 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps

GB/T 25162.2-2010 bag drop test - Part 2.

3 Terms and Definitions

The following terms and definitions apply to this document.